Commit Graph

43 Commits

Author SHA1 Message Date
Vivien Didelot
c56a71a921 net: dsa: mv88e6xxx: remove LED control register
We don't support LED control yet, remove its register definition.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-18 11:10:57 -07:00
Vivien Didelot
ddcbabf440 net: dsa: mv88e6xxx: better IEEE Prio Mapping Table description
Kill the remaining shift macro in favor of calculating at compile time
its value from the more descriptive mask, which gives us a better
representation of the register layout.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20 13:27:01 -04:00
Vivien Didelot
b81095947e net: dsa: mv88e6xxx: prefix remaining port macros
For implicit namespacing and clarity, prefix the remaining common Port
Registers macros with MV88E6XXX_PORT.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:12 -04:00
Vivien Didelot
8009df9e70 net: dsa: mv88e6xxx: prefix Port IEEE Priority mapping macros
For implicit namespacing and clarity, prefix the common Port IEEE
Priority Remapping registers macros with MV88E6095_PORT_IEEE_PRIO.

The 88E6390 family turned the 0x18 register into a single indirect
table, document that at the same time.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Also fix the following checkpatch checks with a temporary variable:

    CHECK: Alignment should match open parenthesis
    #65: FILE: drivers/net/dsa/mv88e6xxx/port.c:932:
    +		err = mv88e6xxx_port_ieeepmt_write(chip, port,
    +			   MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_INGRESS_PCP,

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:12 -04:00
Vivien Didelot
2a4614e4ef net: dsa: mv88e6xxx: prefix Port Association Vector macros
For implicit namespacing and clarity, prefix the common Port Association
Vector Register macros with MV88E6XXX_PORT_ASSOC_VECTOR.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:12 -04:00
Vivien Didelot
2cb8cb144e net: dsa: mv88e6xxx: prefix Port Egress Rate Control macros
For implicit namespacing and clarity, prefix the common Port Egress Rate
Control and Port Egress Rate Control 2 registers macros with
MV88E6XXX_PORT_EGRESS_RATE_CTL1 and MV88E6XXX_PORT_EGRESS_RATE_CTL2.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:11 -04:00
Vivien Didelot
81c6edb23b net: dsa: mv88e6xxx: prefix Port Control 2 macros
For implicit namespacing and clarity, prefix the common Port Control 2
Register macros with MV88E6XXX_PORT_CTL2 and the ones which differ
between implementations with a chosen reference model
(e.g. MV88E6095_PORT_CTL2_CPU_PORT_MASK.)

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:11 -04:00
Vivien Didelot
b7929fb36d net: dsa: mv88e6xxx: prefix Port Default VLAN macros
For implicit namespacing and clarity, prefix the common Port Default
VLAN Register macros with MV88E6XXX_PORT_DEFAULT_VLAN.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:11 -04:00
Vivien Didelot
7e5cc5f1b5 net: dsa: mv88e6xxx: prefix Port Based VLAN macros
For implicit namespacing and clarity, prefix the common Port Based VLAN
Register macros with MV88E6XXX_PORT_BASE_VLAN.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:10 -04:00
Vivien Didelot
cd985bbf9a net: dsa: mv88e6xxx: prefix Port Control 1 macros
For implicit namespacing and clarity, prefix the common Port Control 1
Register macros with MV88E6XXX_PORT_CTL1.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:10 -04:00
Vivien Didelot
a89b433bee net: dsa: mv88e6xxx: prefix Port Control macros
For implicit namespacing and clarity, prefix the common Port Control
Register macros with MV88E6XXX_PORT_CTL0 and the ones which differ
between implementations with a chosen reference model
(e.g. MV88E6185_PORT_CTL0_USE_TAG.)

The reason for CTL0 is to make it clear between the badly named
"Port Control", "Port Control 1" and "Port Control 2" registers.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:10 -04:00
Vivien Didelot
107fcc10e8 net: dsa: mv88e6xxx: prefix Port Switch ID macros
For implicit namespacing and clarity, prefix the common Switch ID
Register macros with MV88E6XXX_PORT_SWITCH_ID.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers, this means shifting their values by 4.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:10 -04:00
Vivien Didelot
6c96bbfdd0 net: dsa: mv88e6xxx: prefix Port Jamming macros
For implicit namespacing and clarity, prefix the common Port Jamming
Control Register macros with MV88E6XXX_PORT_JAM_CTL and the ones which
differ between implementations with a chosen reference model
(e.g. MV88E6097_PORT_JAM_CTL.)

The 88E6390 family renamed the register to Flow Control and turned it
into an indirect table. Document that as well.

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:09 -04:00
Vivien Didelot
5ee55577cf net: dsa: mv88e6xxx: prefix Port MAC Control macros
For implicit namespacing and clarity, prefix the common MAC Control
Register macros with MV88E6XXX_PORT_MAC_CTL and the ones which differ
between implementations with a chosen reference model
(e.g. MV88E6065_PORT_MAC_CTL_SPEED_200.)

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:09 -04:00
Vivien Didelot
5f83dc93b2 net: dsa: mv88e6xxx: prefix Port Status macros
For implicit namespacing and clarity, prefix the common Port Status
Register macros with MV88E6XXX_PORT_STS and the ones which differ
between implementations with a chosen reference model
(e.g. MV88E6352_PORT_STS_EEE.)

Document the register and prefer ordered hex masks values for all
Marvell 16-bit registers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 11:23:09 -04:00
Vivien Didelot
cd782656da net: dsa: mv88e6xxx: rework jumbo size operation
Marvell chips have a Jumbo Mode to set the maximum frame size (MTU).

The mv88e6xxx_ops structure is meant to contain generic functionalities,
no driver logic. Change port_jumbo_config to port_set_jumbo_size setting
the mode from a given maximum size value.

There is no functional changes since we still use 10240 bytes.

At the same time, correctly clear all Jumbo Mode bits before writing.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 12:10:59 -04:00
Vivien Didelot
0898432cc2 net: dsa: mv88e6xxx: rework pause limit operation
All Marvell chips supporting Pause frames limiting use 1-byte value for
input and output.

Old chips have both bytes adjacent in a 16-bit register. New ones have
an indirect table using 8-bit data.

The mv88e6xxx library functions (such as in port.c) must not contain
driver logic, but only generic helpers. This patch changes the
port_pause_config operation for port_pause_limit taking two u8 arguments
for input and output limits. There is no functional changes.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 12:10:59 -04:00
Vivien Didelot
31bef4e90c net: dsa: mv88e6xxx: add egress mode enumeration
As for the frame mode, add a mv88e6xxx_egress_mode enumeration instead
of a 16-bit register mask.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 12:10:57 -04:00
Vivien Didelot
d2a160b5a7 net: dsa: mv88e6xxx: move the Port macros
Move the PORT_* macros where they belong, in the related port.h header.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04 20:07:41 -04:00
Vivien Didelot
4d5f2ba778 net: dsa: mv88e6xxx: rename chip header
The mv88e6xxx.h is meant to contains the chip structures and data.
Rename it to chip.h, as for other source/header pairs of the driver.

At the same time, ensure that relative header inclusions are separated
by a newline and sorted alphabetically.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-04 20:07:40 -04:00
Vivien Didelot
4333d619f9 net: dsa: fix copyright holder
I do not hold the copyright of the DSA core and drivers source files,
since these changes have been written as an initiative of my day job.
Fix this.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-28 22:04:51 -07:00
Vivien Didelot
9dbfb4e1ca net: dsa: mv88e6xxx: add port priority override op
Add a new operation to disable the DA, SA and VTU priority override.

Setting such limit is not likely to be used soon, so provide a
port_disable_pri_override operation directly. This can be changed later
for port_set_pri_override when we'll need it.

Also remove the now obsolete mv88e6xxx_6320_family helper.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:07 -07:00
Vivien Didelot
c8c9489152 net: dsa: mv88e6xxx: add port ATU learn limit op
Add a new operation to disable the limiting of learnt MAC addresses.

Setting such limit is not likely to be used soon, so provide a
port_disable_learn_limit operation directly. This can be changed later
for port_set_learn_limit when we'll need it.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:07 -07:00
Vivien Didelot
601aeed371 net: dsa: mv88e6xxx: fix port egress flooding mode
The Marvell switch ports can be configured to allow or prevent egress of
frames with an unknown unicast or multicast destination address.

Some switch chips such as 88E6095 and 88E6185 have two disjoint bits in
Port Control Register (0x04) bit 2 "Forward Unknown" (for unicast) and
Port Control 2 Register (0x08) bit 6 "Default Forward" (for multicast).

Other chips such as 88E6085, 88E6123, 88E6352, and 88E6390 have a 2-bit
value in Port Control Register (0x04) bits 3:2 "EgressFloods".

The current code does not fully implement the disjoint bits variant and
assigns incorrect ones to some chip models. Fix that with two
implementation references (6185 and 6352 that I currently have) of a
port_set_egress_floods operation (as named in datasheets).

Old chips such as 88E6060 don't have egress flooding mode, so don't
error out if the operation is not provided.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:07 -07:00
Vivien Didelot
ea698f4f70 net: dsa: mv88e6xxx: setup message ports
All interconnectable Marvell switch chips have an ATU Learn2All feature
which allows newly learnt addresses to be spanned on ports marked as
"Message Port".

This commit configures the DSA ports as Message Port. Note that this has
no effect until the Learn2All feature is enabled.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12 23:54:05 -07:00
Andrew Lunn
a23b296198 net: dsa: mv88e6xxx: Refactor remaining port setup
Move the remaining port configuration code which varies per device
into port.c, using ops were necessary. This makes
mv88e6xxx_6185_family() and mv88e6xxx_6095_family() unused, so remove
them.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:48:06 -05:00
Andrew Lunn
f39908d3b1 net: dsa: mv88e6xxx: Set the CMODE for mv88e6390 ports 9 & 10
Unlike most ports, ports 9 and 10 of the 6390X family have configurable
PHY modes. Set the mode as part of adjust_link().

Ordering is important, because the SERDES interfaces connected to
ports 9 and 10 can be split and assigned to other ports. The CMODE has
to be correctly set before the SERDES interface on another port can be
configured. Such configuration is likely to be performed in
port_enable() and port_disabled(), called on slave_open() and
slave_close().

The simple case is port 9 and 10 are used for 'CPU' or 'DSA'. In this
case, the CMODE is set via a phy-mode in dsa_cpu_dsa_setup(), which is
called early in the switch setup.

When ports 9 or 10 are used as user ports, and have a fixed-phy, when
the fixed fixed-phy is attached, dsa_slave_adjust_link() is called,
which results in the adjust_link function being called, setting the
cmode. The port_enable() will for other ports will be called much
later.

When ports 9 or 10 are used as user ports and have a real phy attached
which does not use all the available SERDES interface, e.g. a 1Gbps
SGMII, there is currently no mechanism in place to set the CMODE of
the port from software. It must be hoped the stripping resistors are
correct.

At the same time, add a function to get the cmode. This will be needed
when configuring the SERDES interfaces.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:34:43 -05:00
Andrew Lunn
3ce0e65eb6 net: dsa: mv88e6xxx: Implement mv88e6390 pause control
The mv88e6390 has a number flow control registers accessed via the
Flow Control register. Use these to set the pause control.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:39 -05:00
Andrew Lunn
b35d322a1d net: dsa: mv88e6xxx: Refactor pause configuration
The mv88e6390 has a different mechanism for configuring pause.
Refactor the code into an ops function, and for the moment, don't add
any mv88e6390 code yet.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:39 -05:00
Andrew Lunn
ef70b1119e net: dsa: mv88e6xxx: Refactor egress rate limiting
There are two different rate limiting configurations, depending on the
switch generation. Refactor this into ops.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:38 -05:00
Andrew Lunn
5f4366660d net: dsa: mv88e6xxx: Refactor setting of jumbo frames
Some switches support jumbo frames. Refactor this code into operations
in the ops structure.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:18:38 -05:00
Andrew Lunn
56995cbc35 net: dsa: mv88e6xxx: Refactor CPU and DSA port setup
Older chips only support DSA tagging. Newer chips have both DSA and
EDSA tagging. Refactor the code by adding port functions for setting the
frame mode, egress mode, and if to forward unknown frames.

This results in the helper mv88e6xxx_6065_family() becoming unused, so
remove it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
v3:
Verify mandatory ops for port setup
Don't set ether type for DSA port.
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Andrew Lunn
ef0a731882 net: dsa: mv88e6xxx: Implement mv88e6390 tag remap
The mv88e6390 does not have the two registers to set the frame
priority map. Instead it has an indirection registers for setting a
number of different priority maps. Refactor the old code into an
function, implement the mv88e6390 version, and use an op to call the
right one.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03 23:15:00 -05:00
Vivien Didelot
96a2b40c7b net: dsa: mv88e6xxx: add port's MAC speed setter
While the two bits for link, duplex or RGMII delays are used the same
way on chips supporting the said feature, the two bits for speed have
different meaning for most of the chips out there.

Speed value is stored in bits 1:0, 0x3 means unforce (normal detection).

Some chips reuse values for alternative speeds when bit 12 is set.

Newer chips with speed > 1Gbps reuse value 0x3 thus need a new bit 13.

Here are the values to write in register 0x1 to (un)force speed:

    | Speed   | 88E6065 | 88E6185 | 88E6352 | 88E6390 | 88E6390X |
    | ------- | ------- | ------- | ------- | ------- | -------- |
    | 10      | 0x0000  | 0x0000  | 0x0000  | 0x2000  | 0x2000   |
    | 100     | 0x0001  | 0x0001  | 0x0001  | 0x2001  | 0x2001   |
    | 200     | 0x0002  | NA      | 0x1001  | 0x3001  | 0x3001   |
    | 1000    | NA      | 0x0002  | 0x0002  | 0x2002  | 0x2002   |
    | 2500    | NA      | NA      | NA      | 0x3003  | 0x3003   |
    | 10000   | NA      | NA      | NA      | NA      | 0x2003   |
    | unforce | 0x0003  | 0x0003  | 0x0003  | 0x0000  | 0x0000   |

This patch implements a generic mv88e6xxx_port_set_speed() function used
by chip-specific wrappers to filter supported ports and speeds.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot
a0a0f6229b net: dsa: mv88e6xxx: add port's RGMII delay setter
Some chips such as 88E6352 and 88E6390 can be programmed to add delays
to RXCLK for IND inputs or to GTXCLK for OUTD outputs when port is in
RGMII mode.

Add a port function to program such delays according to the provided PHY
interface mode.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot
7f1ae07b51 net: dsa: mv88e6xxx: add port duplex setter
Similarly to port's link, add setter to force port's half duplex, full
duplex or let normal duplex detection occurs.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot
08ef7f1022 net: dsa: mv88e6xxx: add port link setter
Most of the chips will have a port register control bits to force the
port's link up, down, or let normal link detection occurs.

Implement such operation to use it later when setting duplex, etc.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:40:00 -04:00
Vivien Didelot
385a0995cc net: dsa: mv88e6xxx: add port 802.1Q mode setter
Add port functions to set the port 802.1Q mode.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot
77064f37b9 net: dsa: mv88e6xxx: add port PVID accessors
Add port functions to access the ports default VID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot
b4e48c500e net: dsa: mv88e6xxx: add port FID accessors
Add functions to port files to access the ports default FID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot
5a7921f46d net: dsa: mv88e6xxx: add port vlan map setter
Add a port function to access the Port Based VLAN Map register.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:59 -04:00
Vivien Didelot
e28def3329 net: dsa: mv88e6xxx: add port state setter
Add the port STP state setter to the port files.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:58 -04:00
Vivien Didelot
18abed211c net: dsa: mv88e6xxx: add port files
The Marvell switches contains one internal SMI device per port, called
"Port Registers". Depending on the model, the addresses of these devices
start from 0x0, 0x8 or 0x10.

Start moving Port Registers specific code to their own files.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04 14:39:58 -04:00